package cn.tedu.knows.generator;
//CodeGenerator

    import java.util.ArrayList;
import java.util.List;
import java.util.Scanner;
import com.baomidou.mybatisplus.core.exceptions.MybatisPlusException;
import com.baomidou.mybatisplus.core.toolkit.StringPool;
import com.baomidou.mybatisplus.core.toolkit.StringUtils;
import com.baomidou.mybatisplus.generator.AutoGenerator;
import com.baomidou.mybatisplus.generator.InjectionConfig;
import com.baomidou.mybatisplus.generator.config.DataSourceConfig;
import com.baomidou.mybatisplus.generator.config.FileOutConfig;
import com.baomidou.mybatisplus.generator.config.GlobalConfig;
import com.baomidou.mybatisplus.generator.config.PackageConfig;
import com.baomidou.mybatisplus.generator.config.StrategyConfig;
import com.baomidou.mybatisplus.generator.config.TemplateConfig;
import com.baomidou.mybatisplus.generator.config.po.TableInfo;
import com.baomidou.mybatisplus.generator.config.rules.DateType;
import com.baomidou.mybatisplus.generator.config.rules.NamingStrategy;
import com.baomidou.mybatisplus.generator.engine.FreemarkerTemplateEngine;

    /**
     * @Description: 代码生成类
     */
    public class CodeGenerator {
        //数据库连接参数
        public static String driver = "com.mysql.cj.jdbc.Driver";
        public static String url = "jdbc:mysql://localhost:3306/knows?characterEncoding=utf8&useSSL=false&serverTimezone=Asia/Shanghai&rewriteBatchedStatements=true";
        public static String username="root";
        public static String password="18709422435";
        //父级别包名称
        public static String parentPackage = "cn.tedu.knows";
        //代码生成的目标路径
        public static String generateTo = "/knows-generator/src/main/java";
        //mapper.xml的生成路径
        public static String mapperXmlPath = "/knows-generator/src/main/resources/mapper";
        //控制器的公共基类，用于抽象控制器的公共方法，null值表示没有父类
        public static String baseControllerClassName ;// = "cn.tedu.knows.portal.base.BaseController";
        //业务层的公共基类，用于抽象公共方法
        public static String baseServiceClassName ;   // = "cn.tedu.knows.portal.base.BaseServiceImpl";
        //作者名
        public static String author = "tedu.cn";
        //模块名称，用于组成包名
        public static String modelName = "portal";
        //Mapper接口的模板文件，不用写后缀 .ftl
        public static String mapperTempalte = "/ftl/mapper.java";

        /**
         * <p>
         * 读取控制台内容
         * </p>
         */
        public static String scanner(String tip) {
            Scanner scanner = new Scanner(System.in);
            StringBuilder help = new StringBuilder();
            help.append("请输入" + tip + "：");
            System.out.println(help.toString());
            if (scanner.hasNext()) {
                String ipt = scanner.next();
                if (StringUtils.isNotEmpty(ipt)) {
                    return ipt;
                }
            }
            throw new MybatisPlusException("请输入正确的" + tip + "！");
        }

        /**
         * RUN THIS
         */
        public static void main(String[] args) {
            // 代码生成器
            AutoGenerator mpg = new AutoGenerator();

            // 全局配置
            GlobalConfig gc = new GlobalConfig();
            String projectPath = System.getProperty("user.dir");
            gc.setOutputDir(projectPath + generateTo);
            gc.setAuthor(author);
            gc.setOpen(false);
            //设置时间类型为Date
            gc.setDateType(DateType.TIME_PACK);
            //开启swagger
            //gc.setSwagger2(true);
            //设置mapper.xml的resultMap
            gc.setBaseResultMap(true);
            mpg.setGlobalConfig(gc);

            // 数据源配置
            DataSourceConfig dsc = new DataSourceConfig();
            dsc.setUrl(url);
            // dsc.setSchemaName("public");
            dsc.setDriverName(driver);
            dsc.setUsername(username);
            dsc.setPassword(password);
            mpg.setDataSource(dsc);

            // 包配置
            PackageConfig pc = new PackageConfig();
            pc.setEntity("model");
            //pc.setModuleName(scanner("模块名"));
            pc.setModuleName(modelName);
            pc.setParent(parentPackage);
            mpg.setPackageInfo(pc);

            // 自定义配置
            InjectionConfig cfg = new InjectionConfig() {
                @Override
                public void initMap() {
                    // to do nothing
                }
            };
            List<FileOutConfig> focList = new ArrayList<>();
            focList.add(new FileOutConfig("/templates/mapper.xml.ftl") {
                @Override
                public String outputFile(TableInfo tableInfo) {
                    // 自定义输入文件名称
                    return projectPath + mapperXmlPath
                            + "/" + tableInfo.getEntityName() + "Mapper" + StringPool.DOT_XML;
                }
            });
            cfg.setFileOutConfigList(focList);
            mpg.setCfg(cfg);
            mpg.setTemplate(new TemplateConfig().setXml(null));
            mpg.setTemplate(new TemplateConfig().setMapper(mapperTempalte));

            // 策略配置
            StrategyConfig strategy = new StrategyConfig();
            strategy.setNaming(NamingStrategy.underline_to_camel);
            //字段驼峰命名
            strategy.setColumnNaming(NamingStrategy.underline_to_camel);
            //设置实体类的lombok
            strategy.setEntityLombokModel(true);
            //设置controller的父类
            if (baseControllerClassName!=null) strategy.setSuperControllerClass(baseControllerClassName);
            //设置服务类的父类
            if (baseServiceClassName !=null ) strategy.setSuperServiceImplClass(baseServiceClassName);
            // strategy.
            //设置实体类属性对应表字段的注解
            strategy.setEntityTableFieldAnnotationEnable(true);
            //设置表名
            String tableName = scanner("表名, all全部表");
            if(! "all".equalsIgnoreCase(tableName)){
                strategy.setInclude(tableName);
            }
            strategy.setTablePrefix(pc.getModuleName() + "_");
            strategy.setRestControllerStyle(true);
            mpg.setStrategy(strategy);

            // 选择 freemarker 引擎需要指定如下加，注意 pom 依赖必须有！
            mpg.setTemplateEngine(new FreemarkerTemplateEngine());
            mpg.execute();
        }

    }

